平原区中小型水闸过闸流量推求方案与实例

Calculation Scheme and Example on Lockage Discharge of Middle and Small Sluices in Plain Area

杭州市市域内平原分布广泛,涵盖了杭嘉湖平原、萧绍平原的相当部分,区内河网密布,中小型水闸数量相当之多。以水闸不同启闭情况下的实测过闸流量为依据,结合水闸自身特性与水力学相关理论,探求可操作性的过闸流量推求方案。结合实例介绍了推流方案的编制。基于推流方案,制作用于查阅过闸流量的工作表,绘制相应的工作曲线。

Plains are distributed widely within the urban area of Hangzhou City,covering the Hangjiahu Plain and a fairly part of the Xiaoshao Plain.There is a dense river network in the area and a large number of middle and small sluices.In accordance with the observed lockage discharge under the opened and closed conditions of sluice,in combination with the self-characteristics of the sluice and the relevant hydraulic theory,the calculation scheme of maneuverable lockage discharge is pursued in the study.Combined with the example,the article introduces how to compile plug flow scheme,the worksheet of lockage discharge used for consulting and drawing corresponding work-curve based on plug flow scheme.